Any brand of brake pad will do, for KYMCO does not produce it by themself.
Ceramic are said to run cleaner (dustwise) which also depends where you use your vehicle.
For brake performance:
if your brake disc(s) are grooved in, none of (ceramic or metallic) any new brand brake pad will perform satisfactorely, because of reduced area of cohasion to your disc.
Simply runs on elevated parts and braking performance could be reduced up to 80% until disc and pads are sanded together again.